Patents
Patents for H04B 10 - Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication (73,125)
04/2009
04/15/2009EP1737147B1 Low speed rate traffic signal transmission method in optical transmission network and device
04/15/2009EP1724886B1 Integrated memory controller circuit for fiber optics transceiver
04/15/2009EP1042871B1 Digital radio-frequency transceiver
04/15/2009CN201222739Y Single fiber bidirectional light transmit-receive component
04/15/2009CN201222738Y Patch type infrared receiving die set
04/15/2009CN101411099A Method of introducing an outstation into an optical network and outstation therefor
04/15/2009CN101411098A Signal identifying apparatus for an optical fiber
04/15/2009CN101411097A 光学数据总线系统 Optical data bus system
04/15/2009CN101409664A Method and system for implementing bandwidth resource dynamic distribution in point-to-multi-point optical network
04/15/2009CN101409646A Method, apparatus, system, network management equipment and node for monitoring performance parameter
04/15/2009CN101409626A Optical network unit and method for controlling power supply user terminal access thereof
04/15/2009CN101409596A Method for planning dynamic business wavelength route optical network
04/15/2009CN101409589A Drive circuit for laser
04/15/2009CN101409587A Method, system and network node for transmitting data
04/15/2009CN101409061A Display system as well as launcher and converter thereof
04/15/2009CN101408648A Pin folding and cutting apparatus of light transmitting component and light receiving component
04/15/2009CN100479356C Optical ADM device based on microelectromechanical system and technique
04/15/2009CN100479353C Optical cable line real-time monitoring system and its method
04/15/2009CN100479352C Optical associated signal loading, monitoring method and apparatus
04/15/2009CN100479351C Dispersed business analysing method
04/15/2009CN100479197C 光接收器封装件 Optical receiver package
04/15/2009CN100478721C System and method for fabricating arrayed optical fiber collimators
04/14/2009US7519301 Emitter follower driver for silicon optical modulator
04/14/2009US7519300 Optical output control method for use in optical transmission node and optical output control apparatus for use in the same
04/14/2009US7519299 Optical signal regenerative repeater, optical gate control method, and optical signal regeneration method
04/14/2009US7519298 VWS secure/non-secure bypass switch
04/14/2009US7519297 Cable television system with separate radio frequency hub and ethernet hub
04/14/2009US7519295 Apparatus and method for commissioning an optical transmission system
04/14/2009US7519294 Method and apparatus for providing integrated symmetric and asymmetric network capacity on an optical network
04/14/2009US7518120 Long-distance quantum communication and scalable quantum computation
04/14/2009US7517132 Light-emitting and light-receiving backlight unit, and information device using the light-emitting and light-receiving backlight unit
04/14/2009CA2379080C Rectangular response optical filter for partitioning a limited spectral interval
04/09/2009WO2009044984A1 Device and method for separation/conversion of multiband signal
04/09/2009WO2009044959A1 Injection light generator for use in wavelength division multiplexed-passive optical network
04/09/2009WO2009044948A1 Remote node configuration for providing upgraded services in a passive optical network and a passive optical network having the same
04/09/2009WO2009044457A1 Optical communication device and optical communication method
04/09/2009WO2009044164A1 Transmission of broadband signals
04/09/2009WO2009043880A1 Optical device with superimposed photonic circuits for coupling to one or more optical guides
04/09/2009WO2009043290A1 A method, a system and an apparatus for protection in a long reach passive optical network
04/09/2009WO2009043272A1 Optical line terminal, passive optical network and radio frequency signal transmission method
04/09/2009WO2009043161A1 Wavelength division multiplexing serial video signals over optical interfaces using the xfp form factor
04/09/2009WO2009022281A3 Exchanging information via retro-reflection
04/09/2009WO2009020691A3 Frequency modulated burst mode optical system
04/09/2009WO2008030782A3 Wideband receiver based on photonics technology
04/09/2009WO2006050186A3 Article comprising a multichannel optical amplified transmission system with functional upgrade capabilities and universal modules
04/09/2009US20090092401 Quaternary phase modulator
04/09/2009US20090092400 Light source in optical transmission system, waveform shaper, optical pulse train generator and optical reproduction system
04/09/2009US20090092399 Monolithic shell for an optical electrical device
04/09/2009US20090092398 Data Signal Isolation Apparatus
04/09/2009US20090092395 Upgraded Optical Communication System with Increased Transmission Capacity and Method
04/09/2009US20090092393 Coherent Optical Orthogonal Frequency Division Multiplexing (OFDM) Reception Using Self Optical Carrier Extraction
04/09/2009US20090092390 Wavelength-Division Multiplexed Passive Optical Network For Embodying Wavelength-Independent Operation of Wavelength-Locked Fabry-Perot Laser Diodes by Injecting a Low Noise Broadband Light Source
04/09/2009US20090092388 Method, optical network and network device for locating fiber events
04/09/2009US20090092040 Methods and systems for selecting modulation in an orthogonal frequency division multiplexing system
04/09/2009US20090091820 Real-time terahertz imaging system for the detection of concealed objects
04/09/2009DE112007001098T5 Datensignal-Isolationsvorrichtung Data signal isolation device
04/09/2009DE102007046636A1 Verfahren und Vorrichtung zur Übertragung von Audiosignalen zu den Sendedioden einer Audiosignalinfrarotsendeeinheit Method and apparatus for transmitting audio signals to the transmitter diodes of an audio signal infrared transmitter unit
04/09/2009DE102004046503B4 Indirektes optisches Freiraum-Kommunikationssystem zur breitbandigen Übertragung von hochratigen Daten im Passagierraum eines Flugzeugs Indirect free-space optical communication system for broadband transmission of high data in the passenger compartment of an airplane
04/09/2009CA2701591A1 Wavelength division multiplexing serial video signals over optical interfaces using the xfp form factor
04/08/2009EP2045935A2 Optical transmission system and optical transmission method
04/08/2009EP2045934A1 Method and apparatus for transmitting a low-rate traffic signal in an optical transport network (OTN)
04/08/2009EP2044708A2 Reducing crosstalk in free-space optical communications
04/08/2009EP2044707A1 Method and arrangements for determining the optical signal-to-noise ratio for an optical transmission system
04/08/2009EP2044706A2 Coherent gated receiver
04/08/2009EP2003486A9 Differential four-phase shift modulator and method for controlling phase shift amount thereof
04/08/2009EP2000832A9 Optical communication system
04/08/2009EP1649310A4 Multimode fiber optic intrusion detection system
04/08/2009CN101405971A Optical transmission system and optical repeater
04/08/2009CN101405970A Method and system for keeping timing alignment between driving signals in optical double modulation
04/08/2009CN101405969A Light emitting element circuit, light transmitting system, light transmitting module, and electronic device
04/08/2009CN101405211A 电梯系统 Elevator system
04/08/2009CN101404544A Digital optical fiber remote system technology
04/08/2009CN101404543A M-DPSK signal demodulator
04/08/2009CN101404542A Method for eliminating random PPI-AIS alarm at circuit self-loop of 2M interface in SDH equipment
04/08/2009CN101404541A Method for associating multiple service objects through network management topological link layers
04/08/2009CN101404533A Signal output time delay automatic adjustment method of digital optical fiber repeater
04/08/2009CN101404509A Signal interference canceller and signal interference canceling method
04/08/2009CN101403812A Optical receptacle having an electrically isolating ring
04/08/2009CN100477812C Conversion equipment equipped with polarity reverse device
04/08/2009CN100477632C OBS/OPS network performance optimizing method based on virtual node
04/08/2009CN100477596C Method for realizing low order resource regulation in phototiming digital transmission network
04/08/2009CN100477573C Controller for controlling changeable light attenuator
04/08/2009CN100477572C Controller for controlling changeable light attenuator
04/08/2009CN100477571C Controller for controlling changeable light attenuator
04/08/2009CN100477564C Radio-frequency zoom-out module network and method for realizing data transmission using same
04/08/2009CN100477563C Controller for controlling changeable light attenuator
04/08/2009CN100477562C Method for monitoring optical signal in optical transmission system
04/08/2009CN100477407C Electronic module used for inserting into main socket and connecting cable comprising the electronic module
04/07/2009US7515835 System, method and apparatus for clockless PPM optical communication
04/07/2009US7515834 Upgraded optical communication system with increased transmission capacity and method
04/07/2009US7515833 Optical double sideband modulation technique with increased spectral efficiency
04/07/2009US7515832 Optical transmission equipment and integrated circuit
04/07/2009US7515831 System and method for auto-configuring a telecommunication device with an embedded controller
04/07/2009US7515830 Optical communication apparatus by using subcarrier multiple access and method thereof
04/07/2009US7515829 Wavelength division multiplexing optical transmission system
04/07/2009US7515626 Light source capable of lasing that is wavelength locked by an injected light signal
04/07/2009US7515331 Twin optical amplifier with dual pump power control
04/07/2009CA2396338C An apparatus and method for multiplexing and/or demultiplexing optical signals having substantially equal dispersion
04/07/2009CA2391989C An arrangement for supervising and/or controlling the bit rate of data pulses
04/07/2009CA2355312C Optical system and method having low loss and non-linear effects